Features: brand new and high quality It is suitable for various post-installed CD-players, such as Alpine, for Pioneer, Clarion and other navigators. The rear of the original car has an AUX IN lotus female for head speaker, which can be plugged in with the RCA-male for head to achieve Bluetooth-compatible music. Using Jerry Bluetooth-compatible master chip, Bluetooth-compatible 5.0 version, high-speed transmission without distortion, the sound quality can reach high-definition standards, the car Bluetooth-compatible music player has wireless music transmission function. Using Bluetooth-compatible transmission, you can say goodbye to the mess, and you can also for play music online. In the streaming media era, various online APPs are quite convenient, and the audio source is updated in a timely manner. This product is aimed at different brands of for cars, and is equipped with different connectors and plugs according to the reserved interface behind the original car host. The product uses a wide range of voltage input to adapt to different use environments. The product supports efficient music transmission, version 5.0, for the following versions, if the call comes, you can answer the call, the sound effect is clear. Specifications: Material:ABS Size: As Picture Shown Bluetooth-compatible name: JieRui-BT 5908 Bluetooth-compatible version: 5.0 (for the following versions) Product voltage: 5-12V Microphone cord length: 1.5 meters Package Includes: 1x Bluetooth-compatible RCA-Adapter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.